Answer / chandra mohan

Capacitor is not a constant source of voltage and current as
well.It shows transient behavior of current and voltage when
applied to a some resistance or load and it discharges
almost instantaneously that does not serve the purpose thus
batteries are used.

Answer / karthikeyan

THE MAIN FUNCTION OF THE CAPACITOR IS TO CHARGE AND
DISCHARGE ...IT BASICALLY MADE OF DIELECTRIC
ELEMENT ...BATTERIES ALSO HAVING SAME FUNCTION BUT IT
CONTAINS SOME CHEMICAL METALS ..LIKE LED ACID,NI ,,ETC...

Answer / viswanath

all capacitors hav equal
charge on both plates so
same potential .but bot
electrodes of battery in
most of the cases r not
of same potential.a
curent flows inside a
batery too.but actualy
conduction taks place in
cptor thru electrostatic
induction.and some btry
once discharge cant b
rechargd

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What is cut off relay? And why use in PLC and DCS?

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What is paid how it works

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